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Erschienen in: Autonomous Robots 6/2016

01.08.2016

Compliance control for stabilizing the humanoid on the changing slope based on terrain inclination estimation

verfasst von: Zhibin Li, Chengxu Zhou, Nikos Tsagarakis, Darwin Caldwell

Erschienen in: Autonomous Robots | Ausgabe 6/2016

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Abstract

This paper presents a stabilization framework integrated with the estimation of the terrain inclination to balance a humanoid on the changing slope as an extension to our previous study. In this paper, the estimation of the terrain inclination is improved for walking in place on an inclination-varying slope. A passivity based admittance control utilizes the force/torque sensing in feet to actively regulate the impedance at the center of mass to stabilize the robot. The logic-based inclination estimation algorithm uses the feet to probe the terrain and deals with the under-actuation. The equilibrium set-point in the admittance control is regulated based on the detected inclination. The effectiveness of the control framework is validated on the humanoid robot COMAN and demonstrated by estimating the terrain inclination, coping with the under-actuation phase, adapting to the slope with changing inclination during both standing and walking. Experimental data are analyzed and discussed, and the future work is suggested.

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Metadaten
Titel
Compliance control for stabilizing the humanoid on the changing slope based on terrain inclination estimation
verfasst von
Zhibin Li
Chengxu Zhou
Nikos Tsagarakis
Darwin Caldwell
Publikationsdatum
01.08.2016
Verlag
Springer US
Erschienen in
Autonomous Robots / Ausgabe 6/2016
Print ISSN: 0929-5593
Elektronische ISSN: 1573-7527
DOI
https://doi.org/10.1007/s10514-015-9504-6

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